Low tire pressure warning sensor

[Rick Gibbons]

Thanks, everyone. My local Chevrolet dealer offers tire specials, usually in the spring, for a rebate if I use my GM rewards card. I got $140 back on new Michelins for my 2002 Bird last spring. That's the plan for this spring for the ZR-1, reducing from $1140 advertised price. I think I will try to install the new sensor and take a good look at the other 3. If they seem to be in good shape, I'll have all 4 working (first choice.) If any are questionable, or if they damage one or more during installation, I'll yank them all and deal with the warning light. Side bar...my two right wheels have the labels indicating where to break down the tires, the left ones have no labels and show no signs of ever being there. I'm not sure what to tell the tire tech when they start to break them down. Should I guess they are 180 from the valve stem as Goldcylon said and hope for the best?

[GOLDCYLON]

Originally Posted by Rick Gibbons

Thanks, everyone. My local Chevrolet dealer offers tire specials, usually in the spring, for a rebate if I use my GM rewards card. I got $140 back on new Michelins for my 2002 Bird last spring. That's the plan for this spring for the ZR-1, reducing from $1140 advertised price. I think I will try to install the new sensor and take a good look at the other 3. If they seem to be in good shape, I'll have all 4 working (first choice.) If any are questionable, or if they damage one or more during installation, I'll yank them all and deal with the warning light. Side bar...my two right wheels have the labels indicating where to break down the tires, the left ones have no labels and show no signs of ever being there. I'm not sure what to tell the tire tech when they start to break them down. Should I guess they are 180 from the valve stem as Goldcylon said and hope for the best?

Tell 'em anyway. I would not take the chance on the techs reading the label. Make sure they know that you know where the sensors are and you have advised them correctly.

[Rick Gibbons]

Originally Posted by secondchance

LTPWS sensors in the tire/wheel uses piezoelectric to generate electric charge. I removed mine about 10 years ago when I went to 18? wheels and removed the light bulb behind the warning screen.
With age, plastic has tendency to get brittle and even new might fall apart inside the wheel.

Update on my pressure sensor question.
I discovered the date code on the inside of the tires that were supposedly installed October 2021. They were from 2014, Nitto summer tires. I decided now was the time for something new since I am driving the car about 100 miles per month year round. My local Chevrolet dealer installed a new set of Michelins, currently with a $70 rebate. I can't say enough about my technician, Evan. He let me hang out, making sure the pinch welds were used for lift placement. I showed him the new sensor I had found on ebay and explained the process. He used a small flashlight to look inside each tire until he located the sensor in each wheel (each of which looked perfect). He took great care in removing and installing the new tires. He mentioned how unusual it was for each of the wheel tire combos to take 1/2 ounce of weight or less and reinstalled on the car. He used a torque wrench for the lugs and locking lugs and used a smaller torque wrench for the correct setting for the caps. I couldn't have been happier.
But back to the replacement sensor. You mentioned it didn't need a battery or any maintenance, but I'm still getting the service LTPWS light after a few miles. Should something be "reset" or will the computer eventually "find" the new sensor?

[secondchance]

But back to the replacement sensor. You mentioned it didn't need a battery or any maintenance, but I'm still getting the service LTPWS light after a few miles. Should something be "reset" or will the computer eventually "find" the new sensor?

Most likely, just gone bad from the age. Could be 20 to 30 years old.
Pull the code and it should tell you which one.

[XfireZ51]

Has anyone looked at retrofitting newer technology for TPWS? I don?t need to have that show up on my DIC, there?s no doubt an app that I could use to check tire pressure.

[secondchance]

Originally Posted by XfireZ51

Has anyone looked at retrofitting newer technology for TPWS? I don?t need to have that show up on my DIC, there?s no doubt an app that I could use to check tire pressure.

I thought about it. I think there are a few products on eBay that communicates to a smart phone via app. But, quality of some electronic gizmos from China are such, not sure it?s worth the time any money. I have been relying on eyeballing and a mechanical gauge and done ok for 10 plus years.

[HAWAIIZR-1]

LocoBob where are you?


Sent from my iPhone using ZR-1 Net Registry

[GOLDCYLON]

Originally Posted by XfireZ51

Has anyone looked at retrofitting newer technology for TPWS? I don?t need to have that show up on my DIC, there?s no doubt an app that I could use to check tire pressure.

-=JEFF=- has Dom

[XfireZ51]

Originally Posted by GOLDCYLON

-=JEFF=- has Dom

I?ll ask him at Pizza Night.

[GOLDCYLON]

Locobob went with the pressure sensors that replaced the valve cap and transmitted to a separate receiver if I remember correctly.